Bug #69820 [Com]: CLI crashes at start with various extensions enabled

Edit report at https://bugs.php.net/bug.php?id=69820&edit=1 ID: 69820 Comment by: maikgreubel at gmail dot com Reported by: maikgreubel at gmail dot com Summary: CLI crashes at start with various extensions enabled Status: Verified Type: Bug Package: Reproducible crash Operating System: Windows 7 64bit PHP Version: 7.0.0alpha1 Assigned To: ab Block user comment: N Private report: N New Comment: Tested the snapshot build and et'voila, crash does not appear. Thank you, nice done. Previous Comments: ------------------------------------------------------------------------ [2015-06-14 10:43:41] ab@php.net @maikgreubel, or alternatively - just check this snapshot http://windows.php.net/downloads/snaps/ostc/69814/ (built from the latest master). Thanks. ------------------------------------------------------------------------ [2015-06-14 10:31:03] maikgreubel at gmail dot com Going back to qa-build binary and debugging. + &p->val 0x000000000417bf80 {value={lval=112 dval=5.533535233422e-322#DEN counted=0x0000000000000070 {refcount=...} ...} ...} _zval_struct * apply_func 0x000007fede71c480 {php7ts.dll!zend_startup_module_zval(_zval_struct *)} int (_zval_struct *) * + ht 0x000007fedeecdb00 {php7ts.dll!_zend_array module_registry} {gc={refcount=1 u={v={type=7 '\a' flags=...} ...} } ...} _zend_array * + ht->arData 0x00000000060a2800 {val={value={lval=68645888 dval=3.391557498907e-316#DEN counted=0x0000000004177400 {...} ...} ...} ...} _Bucket * ht->nNumUsed 33 unsigned int idx 8 unsigned int + p 0x000000000417bf80 {val={value={lval=112 dval=5.533535233422e-322#DEN counted=0x0000000000000070 {refcount=...} ...} ...} ...} _Bucket * + p->val {value={lval=112 dval=5.533535233422e-322#DEN counted=0x0000000000000070 {refcount=??? u={v={type=??? ...} ...} } ...} ...} _zval_struct result 0 int Due to optimization I can not add conditional breakpoint at for-loop iteration of HashTable in zend_hash_apply to find out, which module entry causes the problem. I try to investigate the scope where the module_registry HashTable is filled with entries and what happens between initialization of HT and the module activation. ------------------------------------------------------------------------ [2015-06-14 10:25:40] ab@php.net @maikgreubel, yeah, see bug #69823. My insight about ext/hash was correct. I think we're done here. Please fetch the latest master to check this. Thanks. ------------------------------------------------------------------------ [2015-06-14 10:01:32] ab@php.net Thanks for the followup. Yeah, --enable-pgi is a part of the PGO build scenario, not needed if you don't do it. But something strange happens. Yesterday I was able to reproduce your initial report using x64\Release_TS\php.exe -n -d extension_dir=x64\Release_TS -d extension=php_fileinfo.dll -d extension=php_mbstring.dll -d extension=php_pdo_mysql.dll -d extension=php_pdo_sqlite.dll But this doesn't crash when I've fetched and rebuilt today. Not doing PGO build as well. But that's why i guess it's not an optimization issue, still quite strange. Maybe you can repro it with this configure line? cscript /nologo configure.js "--enable-snapshot-build" "--enable-debug-pack" "--enable-com-dotnet=shared" That picks up literally everything. But of course, maybe that's just PGO, so probably were worth to check it (but need setup for scenarios). Also, it might be a vc14 issue as it's still RC. Whereby I seem have not received any vc14 updates over the night. Thanks. ------------------------------------------------------------------------ [2015-06-14 08:27:03] maikgreubel at gmail dot com I added the deps from deps-7.0-vc14-x64.7z and compiled with the same options than qa build. The result is not runnable due to missing pgort140.dll. So I disabled --enable-pgi and got no crash with the same extensions enabled in php.ini. I also enabled more extensions: extension=php_fileinfo.dll extension=php_mbstring.dll extension=php_mysqli.dll extension=php_pdo_mysql.dll extension=php_pdo_sqlite.dll extension=php_shmop.dll extension=php_sockets.dll And still no crash. Optimizitation issue? ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=69820 -- Edit this bug report at https://bugs.php.net/bug.php?id=69820&edit=1